mcelevey



2 Sheets-Sheet 1.

G. H. McELEVEY;

Fire Place.

No. 81,389. Patnted Aug. 25, 1868.

. JEWE/ZZZT: 227mm). 9% WM, W WW W5 v I 2 Sheets-Sheet 2- G. HiMcELE-VEY.

Fire Place.

I No. 81,389. Patenfed Aug. '25, 1868.

nits]! tates liateut ffisr. t e

G. H. McELEVEY, OF NEWCASTLE, PENNSYLVANIA.

Letters Patent No. 81,389, dated August 25, 1868.

IMPROVEMENT IN FIRBPLAGES.

El e Srlgthnle nfemt in in time it-titers lenient ant mating part atflge tilmt.

TO ALL WHOM IT MAY CONCERN:

Be it known that L. G. H. liIcELEVEY, of Newcastle, in the county ofLawrence, and State of len'nsylvania, have invented a new and usefulImprovement in Fire-Grate; and I do hereby declare that the following isa full, clear, and exact description thereof, which will enable thoseSkilled in the art to make and use the same,

reference being had to the accompanying drawings, forming part of thisspecification.

The object of this invontionis to so construct and arrange a fire-grate,and the plates and fixtures connected therewith, that the fuel shallreceive a supply of oxygen from the back-and ends, as well as from thefront and under side of the grate, and so that the heat generated shallbe utilized instead of being passed directly to the chimney from thethroat of the grate, as is ordinarily done.

And the invention consists in the construction and arrangement of thegrate, and in connecting air-heating chambers therewith, wherebyjacurrent of air is heated and discharged into the apartment, or conductedto any part of the house, for heating purposes, as willhercinafter bemore fully described.

Figure 1 represents a sectional elevation of the arrangement, throughthe line a x, 0f fig. 2.

Figure 2, sheet 2, represents two semi-sections, A and B.

A is through the line 9 y, and B is through the line z z, of fig. 1,

Similar letters of reference indicate correspondingparts.

0 represents the front of thegrate, and

D the back.

The back is an open grate, as are also the ends E, so that the air hasfree access to the fuel on all sides,

prodncing'thereby a much clearer fire and a. much more perfectcombustion than can be obtainedin theordinary grate.

The grate (back and front) is supported by lugs or hooks on the jambs,as seen at F, and by other lugs on the jamb, not seen'inthe drawing,over which the front part hooks.

' The end-pieces of the gratelock on to the outside bars of the backgrate, as seen atff, fig. 1.

G, H, and I are chambers for heating air. p J represents the fluethrough which the smoke and products of combustion pass on-their way tothe chimney. K is a pivot-damper, operated from tho outside, forregulating the draught. By opening this damper it will besoen that thedraught to the chimney flue L 'will be direct. in is a liftdo'or, usedtojclos c an aperture for cleaning the fire-flue of ashes. This aperturemay also be used for-diverting and altering the direction of' thedraught, ifdesired.

The air-heating chambers have an inlet-tube for admitting fresh air,either from the apartment where thc grate is located, or from theoutside.

The chambers G and I are so arranged that they are nearly surrounded bythe heated products of combustion, and the chamber H is exposed to theheated current of gases on two sides, against the bottom ofwhichthe'current impinges. l I i In passing around and in contact with thesechambers, nearly all the heat is abstracted, or absorbed and utilized. I

The air is first admitted into the chamber I through the pipe P, fromwhence it passes into the chamberG thronghthe tube 0.

From the chamber G it room in a heated state.

The chamber forms a' close cover over the vertical fire-fine, and forces.thesmoke and escaping products of combustion over and around the otherchambers,"as seen in the drawing.

As represented in the drawing, the 'grateis formedof four parts orpieces, but it may be cast in one single piece, if desired. Q

S S, fig '2, represent ash-fines.

passesupwaril into the chamber II, from whence it is taken into theapartment or The course of the sznpke and products of combustion isindicated by the arrows.

Having thus described my invention, I cleim as new, and desire to secureby Letters Patent-- 1. The described arrangement of the ainheatingchambers G H I and theirv eonnectihg-fiues, the supplyflue I, the firearid; smoke-flue J, and the exposed grate E, as herein described for thepurpose specified.

2 The arrangement of the slide-damper m and damper K with relation tothe air-heating fines, G, H, and 1, whereby the products of combustionare eitherdirected to the flue-3', between the chambei G and fire-grate,01* over the chamber G, between the same and the chamber H, or over thechamber I, or over the chamber G, and downward around the chamber I, asherein described for thepurpose specified.

G. H. Mc'ELEVEY. Witnesses:

E. I. AGNEW,

M. J. JACK.

